SSL-Tools

SSL check results of san.ru

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Discover if the mail servers for san.ru can be reached through a secure connection.

To establish a secure connection a mail server has to offer STARTTLS (SSL), a trustworthy SSL certificate, support for the Diffie-Hellman-Algorithm to guarantee Perfect Forward Secrecy and must not be vulnerable against the Heartbleed attack. Futhermore we recommend using end-to-end encryption with GnuPG.

Summary

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Report created Tue, 26 May 2020 15:10:10 +0000

The mailservers of san.ru can be reached through an encrypted connection.

However, we found problems that may affect the security.

Servers

Incoming Mails

These servers are responsible for incoming mails to @san.ru addresses.

Hostname / IP address Priority STARTTLS Certificates Protocol
mail.san.ru
2a00:1e88:8:800::28
 10
supported
mail.san.ru
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s
mail.san.ru
88.147.128.28
 10
supported
mail.san.ru
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s
smtp.san.ru
88.147.128.28
 20
supported
mail.san.ru
DANE
missing
PFS
supported
Heartbleed
not vulnerable
Weak ciphers
supported
  • ECDHE_RSA_WITH_RC4_128_SHA
  • SSL_RSA_WITH_RC4_128_SHA
  • TLSv1.2
  • TLSv1.1
  • TLSv1.0
  • SSLv3
16 s

Outgoing Mails

We have received emails from these servers with @san.ru sender addresses. Test mail delivery

Host TLS Version & Cipher
unknown (88.147.142.103)
Insecure - not encrypted!

Certificates

First seen at:

emailAddress=postmaster@san.ru,CN=mail.san.ru,O=PAO Rostelecom,L=Saratov,ST=Saratov,C=RU

Certificate chain
  • mail.san.ru (Certificate is self-signed.)
    • remaining
    • 2048 bit
    • sha256WithRSAEncryption
    • Unknown Authority
Subject
Country (C)
  • RU
State (ST)
  • Saratov
Locality (L)
  • Saratov
Organization (O)
  • PAO Rostelecom
Common Name (CN)
  • mail.san.ru
Email
  • postmaster@san.ru
Issuer

Certificate is self-signed.

validity period
Not valid before
2020-04-29
Not valid after
2030-04-27
Fingerprints
SHA256
F6:0F:D6:77:98:77:FD:B6:EE:DB:40:C6:18:44:9A:63:55:3C:C0:28:09:6A:90:E4:B8:4C:98:EA:F0:6D:A3:5F
SHA1
0A:9A:A9:50:14:4E:1A:0E:C2:DC:3E:D7:7E:40:1C:C2:01:FD:87:26
X509v3 extensions
subjectKeyIdentifier
  • 65:AB:5B:ED:6F:D7:10:BF:AC:C5:1B:E5:7B:A8:FB:BB:DF:49:7A:91
authorityKeyIdentifier
  • keyid:65:AB:5B:ED:6F:D7:10:BF:AC:C5:1B:E5:7B:A8:FB:BB:DF:49:7A:91